Definition: In this task, you are given an input list A. You need to extract and sort the unique digits used in the list in ascending order. Return -1 if there is no digit in the list.
Input: ['117', '417', '189', 'l', '87', '251', 'y', '497', '37']

1, 2, 3, 4, 5, 7, 8, 9